Silverline4 — ORC Rating

GPH

641.7

OSN

623.9

LOA

10.555 m

Displacement

3920 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6294

Medium

0.8586

High

0.9852

Triple Offshore

Low

0.8156

Medium

1.0558

High

1.1827

Boat Specifications

Dimensions

Length overall: 10.555 m
Beam: 3.63 m
Draft: 1.84 m
Displacement: 3920 kg
Crew weight: 551 kg
Wetted surface: 23.06 m²

Sails

Mainsail: 37.13 m²
Genoa: 32.05 m²
Spinnaker: 75.88 m²
Asymmetric spinnaker: 0 m²

Design

Type: YAMAHA 34
Builder: YAMAHA
Designer: YAMAHA
Year built: 1982
Stability index: 106.5

Velocity Prediction

Polar CSV

Each row is TWS followed by TWA and boat-speed pairs. Paste it directly into WX Navigator or compatible navigation software.

6,42.9,4.655017,52,5.18,60,5.48,75,5.72,90,5.63,110,5.5,120,5.31,135,4.76,146,4.137328,150,3.96
8,41.8,5.486427,52,6.15,60,6.41,75,6.59,90,6.57,110,6.61,120,6.45,135,5.85,150,5.01,150.5,4.986467
10,40.6,6.084781,52,6.69,60,6.86,75,7,90,7.07,110,7.16,120,7.07,135,6.73,149.6,6.02889,150,6
12,39.6,6.320462,52,6.93,60,7.11,75,7.3,90,7.41,110,7.62,120,7.53,135,7.21,150,6.77,158.3,6.436111
14,39.1,6.417142,52,7.03,60,7.25,75,7.56,90,7.68,110,8.03,120,7.99,135,7.67,150,7.22,172.1,6.643046
16,38.8,6.454196,52,7.08,60,7.33,75,7.73,90,7.97,110,8.38,120,8.42,135,8.11,150,7.64,178.1,7.053878
20,39.3,6.50005,52,7.11,60,7.39,75,7.88,90,8.35,110,8.81,120,9.3,135,9.11,150,8.49,178.1,7.844313

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.18	5.48	5.72	5.63	5.5	5.31	4.76	3.96
8	6.15	6.41	6.59	6.57	6.61	6.45	5.85	5.01
10	6.69	6.86	7	7.07	7.16	7.07	6.73	6
12	6.93	7.11	7.3	7.41	7.62	7.53	7.21	6.77
14	7.03	7.25	7.56	7.68	8.03	7.99	7.67	7.22
16	7.08	7.33	7.73	7.97	8.38	8.42	8.11	7.64
20	7.11	7.39	7.88	8.35	8.81	9.3	9.11	8.49

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.9°	3.41	146°	3.43
8	41.8°	4.09	150.5°	4.34
10	40.6°	4.62	149.6°	5.2
12	39.6°	4.87	158.3°	5.98
14	39.1°	4.98	172.1°	6.58
16	38.8°	5.03	178.1°	7.05
20	39.3°	5.03	178.1°	7.84

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